The surgical extirpation of brain stem cavernomas always includes a risk of neurological
deficits. To minimize the risk of deficits and control the motor and sensory function
intraoperative monitoring of SEP and MEP seems to be helpful. The high density of
motor and sensory fibers within the brain stem makes bilateral intraoperative monitoring
necessary. The following case demonstrates a stereotactically-guided supratentorial,
transventricular approach for extirpation of a brain stem cavernoma. Sensory and motoric
functions were observed by transcranial recording of SEP's and by transcranial stimulation
of motor cortex.
Brain stem cavernoma - Stereotactic guidance - Motor evoked and sensory evoked potential
monitoring
